reason i like talking to young people is no matter how great the challenges are, their idealism, their energy, their ambition always gives me hope. [applause] and i see the same spirit in the young people here today. [applause] >> i believe that you will shape our future and given the ties between our countries i believe your future is bound to ours. [chanting] [booing ] >> no, no. [chanting] this is part of the lively debate that we talked about. [cheers and applause] >> this is good. [cheers and applause] >> you know -- [cheers and applause] >> i have to say we actually arranged for that because it made me feel at home. [laughter] >> you know i wouldn't feel comfortable if i didn't have at least one heckler. [laughter] >> i'd like to focus on how we, and when i say we, in particular young people can work together to make progress in three areas that will define our times, security, peace, and prosperity. [applause] >> let me begin with security. i'm proud that the security relationship between the united states and israel has never been stronger. never. more exercises between our militaries